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Re: [STDS-802-11-TGBN] Co-TDMA PDT

Hi Sanket,

 

I think there is an important inconsistency between the text

The Co-TDMA sharing AP shall respond with an Ack frame when it receives the TXOP return indication from a Co-TDMA coordinated AP.

 

and Figure 37-3, which does not display and Ack frame.

If the Ack frame is mandatory when there is a return phase, and the figure shows the return phase, I expect the Ack to be displayed.

 

Kind regards,

Michail

 

From: Klaus Doppler (Nokia) <0000320c1b22a542-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: 15 May 2025 08:37
To: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBN] Co-TDMA PDT

 

Hi Sanket,

 

I did not vote no but I also do support to include more information in the ICR. My suggestion is to include the following in the ICF:

 

TXOP Duration Intended to be Allocated to Coordinated AP(s) 8 bit field in the Feedback Information field format when the Feedback Type field is set to 3

 

The TXOP Duration Intended to be Allocated to Coordinated AP(s) field indicates the TXOP duration the Co-TDMA sharing AP intends to allocate to Co-TDMA coordinated AP(s). The TXOP Duration Intended to be Allocated to Coordinated AP(s) is given in microseconds and signalled as integer value times 16us. The polled AP calculates the TXOP duration the sharing AP intends to allocate as [TXOP Duration Intended to be Allocated to Coordinated AP(s) * 16us] and can use this information to decide whether it wishes to receive a time allocation from the Co-TDMA sharing AP.

 

Together with the primary AC this inclusion will help the polled AP to decide whether to request a time allocation from the sharing AP.

 

Similarly, the response frame should contain some information to help the sharing AP to decide who to allocate the shared part of the TXOP.

 

From the discussions I had, there were three main suggestions for what information to include in the response frame:

 

  1. Requested time allocation
  1. Requested time allocation per AC
  1. Add in addition to requested time allocation some measure of urgency (e.g. expiry time of buffered data)

 

BR, Klaus

 

From: Sanket Kalamkar <000033b8f79f2eb4-dmarc-request@xxxxxxxxxxxxxxxxx>
Date: Thursday, May 15, 2025 at 12:06 AM
To: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx <STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx>
Subject: [STDS-802-11-TGBN] Co-TDMA PDT

 

 

Hi all,

 

The SP on Co-TDMA PDT was run during the Thursday AM1 meeting and received 86Y/40N. For those who voted 'No,' could you please share your concerns here for further discussion?

Best,

Sanket Kalamkar

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